CN110979171B - Vehicle starting anti-rolling early warning method and system - Google Patents
Vehicle starting anti-rolling early warning method and system Download PDFInfo
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Abstract
The invention discloses a vehicle starting rolling-prevention early warning method and system, and belongs to the technical field of automobile safety. The system comprises a vehicle door opening detection device, a vehicle chassis detection device, a vehicle front and rear direction detection device and a safety reminding device. The method comprises the following steps: detecting whether life information of a driver getting on the vehicle and life information of an area under a vehicle chassis exists or not, and controlling a safety reminding device according to a detection result; when the vehicle engine is ignited, the vehicle front and rear direction detection device is started to detect the information of the life bodies in the front and rear of the vehicle, the danger grades are divided according to the distance between the life bodies and the vehicle, and safety early warning of different grades is made by combining the running state of the vehicle. The invention can effectively prevent the possible damage to the vehicle chassis and the front and rear life bodies in the vehicle starting process and ensure the safety of vehicle starting.
Description
Technical Field
The invention relates to the technical field of automobile safety, in particular to a vehicle starting rolling-prevention early warning method.
Background
In the modern society, automobiles gradually become a main tool for people to ride instead of walk, and along with the increase of the automobile holding capacity, the automobile safety problem becomes a problem that most drivers and pedestrians are concerned about. Vehicle starting is the first link of vehicle driving, and starting safety of the vehicle starting is the first problem to be considered during driving.
Before the vehicle starts, a driver needs to check whether people and small animals exist on a chassis and the periphery of the vehicle, and enters the vehicle to start ignition after the safety is determined. However, in the process of daily use of the vehicle, for various reasons, few drivers can do the same, and the safety accidents which can be avoided originally are caused. The vehicle starting safety early warning method and device aim at local vehicles supporting the V2X technology, local vehicle position information is acquired based on roadside units, and starting safety early warning is given according to surrounding traffic conditions when the vehicles start. However, this method is limited to communication between the vehicle and the roadside unit, and cannot be widely applied to vehicles in various scenes, and the method is insufficient in detection of a hidden area such as a vehicle chassis.
Therefore, if a technology for detecting the vehicle chassis and the life bodies around the vehicle and giving warning and reminding can be used in the starting process of the vehicle, the life safety of pedestrians and small animals can be effectively prevented from being threatened.
Disclosure of Invention
The invention provides a vehicle starting anti-rolling early warning method and system for solving the problems of detecting a vehicle chassis and surrounding life bodies in the vehicle starting process, warning reminding and actively preventing rolling.
In order to solve the problems, the invention provides a vehicle starting anti-rolling early warning system which comprises a vehicle door opening detection device, a vehicle chassis detection device, a vehicle front and rear direction detection device, a safety reminding device, a CAN communication module and a main control unit; the vehicle door opening detection device is connected with the main control unit in a one-way mode, the vehicle chassis detection device is connected with the main control unit in a two-way mode, the vehicle front and rear direction detection device is connected with the main control unit in a two-way mode, the safety reminding device is connected with the main control unit in a one-way mode, and the CAN communication module is connected with the main control unit in a two-way mode;
the vehicle door opening detection device is arranged on the left front vehicle door and used for detecting the opening of the left front vehicle door and sending a signal to the main control unit to judge whether a driver gets on the vehicle or not;
the vehicle chassis detection device is arranged on a vehicle chassis and used for detecting the life body information in the lower area of the chassis and sending the detected life body information to the main control unit; if the life information is detected, the main control unit controls the safety reminding device to give out warning reminding; if the life information is not detected, the safety reminding device does not act;
the vehicle front-rear direction detection device is started after the vehicle is ignited; the vehicle front and rear direction detection device comprises a front detection device and a rear detection device; the front detection device and the rear detection device are respectively arranged at the front and rear of the vehicle and are used for detecting the life information at the front and rear of the vehicle and sending the detected life information to the main control unit; the main control unit divides the danger level of the area where the life body is located according to the detected life body information and controls the safety reminding device to warn and remind in different levels according to the danger level;
the CAN communication module is mounted on a vehicle CAN network and used for reading basic information of vehicle operation and sending the information to the main control unit; the basic information of the vehicle running comprises the engine ignition condition and the vehicle gear condition of the vehicle.
Preferably, the door opening detection device comprises a fastener which is arranged on the left front door of the vehicle.
Preferably, the vehicle chassis detection device comprises two life detection sensors which are respectively arranged at two ends of the vehicle chassis and cover the whole chassis area.
Preferably, the front detection means includes two life detection sensors installed at both ends of a front bumper of the vehicle; the rear detection device comprises two life detection sensors which are arranged at two ends of a rear bumper of the vehicle; the vehicle front and rear direction detection device range covers a vehicle front and rear sector area.
Preferably, the safety reminding device is internally provided with a driving circuit for driving and triggering a loudspeaker to give an alarm, and the alarm levels of the safety reminding device comprise I-level alarm, II-level alarm and III-level alarm.
The invention also provides a vehicle starting rolling prevention early warning method, which comprises the following steps:
step 1, when a vehicle door opening detection device detects that a left front side vehicle door is opened from the outside of a vehicle, a signal is sent to a main control unit, and the main control unit starts a vehicle chassis detection device;
step 2, the vehicle chassis detection device detects the life body information of the area under the vehicle chassis and returns the detection result to the main control unit, and the main control unit performs the following two processes according to the detection result:
if the life information exists under the vehicle chassis, the main control unit sends an instruction to control the safety reminding device to make I-level alarm reminding, and the step 3 is carried out;
if the existence of the life information under the vehicle chassis is not detected, the safety reminding device does not act, and the step 3 is carried out;
step 3, the main control unit acquires basic information of vehicle operation in real time from the CAN communication module, wherein the basic information of vehicle operation comprises the ignition condition of an engine and gear information;
step 4, if the main control unit receives an engine ignition signal from the CAN communication module, the vehicle chassis detection device is closed, and the chassis early warning process is completed; simultaneously starting a vehicle front and rear direction detection device, and entering step 5; if the master control unit does not receive the engine ignition signal from the CAN communication module, returning to the step 2;
and 5, the main control unit performs the following two processes according to different gear information:
when the vehicle is in a reverse gear, the main control unit only starts a rear detection device, detects the rear life information of the vehicle and sends the detection result to the main control unit;
when the vehicle is in a forward gear, the main control unit only starts a front detection device to detect the information of the life body in front of the vehicle and sends the detection result to the main control unit;
step 6, the main control unit judges the danger level of the front living body or the distance l between the rear living body and the vehicle, and controls the safety reminding device (40) to carry out alarm reminding at different levels according to the danger level judgment result, specifically, the method comprises the following 2 steps:
step 6.1, the main control unit judges the danger level of the life according to the distance l between the life and the vehicle, and the danger distance is set to be l 1 A safety distance of l 2 ：
When l is less than or equal to l 1 Setting the danger level as level I;
when l is 1 <l≤l 2 Setting the danger level as level II;
when l is>l 2 Or the detection device in the front-back direction of the vehicle does not detect the information of the life body, and the danger level is set to be level III;
step 6.2, according to the danger level of the area where the living body is located, the main control unit performs the following processing:
when the danger level is I level, the main control unit controls the safety reminding device to alarm I level;
when the security level is level II, the main control unit controls the security reminding device to alarm at level II;
when the safety level is III level, the main control unit controls the safety reminding device to alarm III level;
and 7: and (4) finishing the early warning process before and after the vehicle starts, closing the vehicle front and rear direction detection device, and quitting the system to wait for the next start.
Preferably, said hazard distance l 1 Has a value range of 1-2m and a safety distance l 2 The value range of (a) is 3-4 m.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention carries out comprehensive detection on the life body information of the vehicle chassis and the front and rear areas, and carries out early warning reminding at different levels according to the current state of the vehicle and the distance between the life body and the vehicle;
2. when a driver gets on the vehicle, the vehicle chassis detection device is started to feed back the information of the life body under the vehicle chassis, and the chassis early warning in the vehicle starting process is realized through voice alarm;
3. when the vehicle engine is ignited, the vehicle front and rear detection device is started, and early warning of different levels is carried out according to the classification result of the danger level of the area where the life body is located;
4. the combination of the multi-step early warning process and the layered processing of the potential safety hazard are more humanized and easier to be accepted by a driver compared with a single vehicle early warning system, and the intelligent vehicle management effectively improves the safety of vehicle starting.
Drawings
Fig. 1 is a structural diagram of a vehicle starting anti-rolling early warning system.
Fig. 2 is a functional structure diagram of the vehicle starting anti-rolling early warning method.
FIG. 3 is a flow chart of a vehicle start rolling prevention early warning method.
Detailed Description
The technical scheme of the invention is further explained by the specific embodiment in the following with the accompanying drawings. It should be understood that the embodiments described herein are only for the purpose of illustrating the invention and are not to be taken as limiting the invention.
Fig. 1 is a structural diagram of a vehicle starting anti-rolling early warning system. As CAN be seen from the figure, the vehicle starting rolling-prevention early warning system comprises a vehicle door opening detection device 10, a vehicle chassis detection device 20, a vehicle front-rear direction detection device 30, a safety reminding device 40, a CAN communication module 50 and a main control unit 60. The vehicle door opening detection device 10 is connected with the main control unit 60 in a one-way mode, the vehicle chassis detection device 20 is connected with the main control unit 60 in a two-way mode, the vehicle front and rear direction detection device 30 is connected with the main control unit 60 in a two-way mode, the safety reminding device 40 is connected with the main control unit 60 in a one-way mode, and the CAN communication module 50 is connected with the main control unit 60 in a two-way mode.
The door opening detection device 10 is mounted to the left front door for detecting opening of the left front door and sending a signal to the main control unit 60 for determining whether a driver gets on the vehicle. In this embodiment, the door opening detecting device 10 includes a latch installed at the left front door of the vehicle.
The vehicle chassis sensing device 20 is installed on the vehicle chassis to sense the living body information in the under-chassis area and transmit the sensed living body information to the main control unit 60. If the life information is detected, the main control unit 60 controls the safety reminding device 40 to give out warning reminding; if no life information is detected, the safety warning device 40 does not operate. In this embodiment, the vehicle chassis detection device 20 includes two life detection sensors respectively installed at two ends of the vehicle chassis, and the installation angle ensures that the detection range covers the whole chassis area.
The vehicle front-rear direction detecting means 30 is activated after the ignition of the vehicle; the vehicle front-rear direction detection device 30 includes a front detection device 310 and a rear detection device 320. The front detection device 310 and the rear detection device 320 are respectively installed in the front and rear of the vehicle for detecting the living body information in front of and behind the vehicle and sending the detected living body information to the main control unit 60; the main control unit 60 divides the danger level of the area where the living body is located according to the detected information of the living body, and controls the safety warning device 40 to give different levels of warning warnings according to the danger level. In the present embodiment, the front detecting means 310 includes two life detection sensors mounted at both ends of a front bumper of the vehicle, and the rear detecting means 320 includes two life detection sensors mounted at both ends of a rear bumper of the vehicle. The vehicle front-rear direction detection device 30 covers a vehicle front-rear sectoral area.
The CAN communication module 50 is mounted on a vehicle CAN network, and is configured to read basic information of vehicle operation and transmit the information to the main control unit 60. The basic information of the vehicle running comprises the engine ignition condition and the vehicle gear condition of the vehicle. In this embodiment, the safety warning device 40 is provided with a driving circuit for driving and triggering a speaker to give an alarm, and the alarm levels include a level i alarm, a level ii alarm, and a level iii alarm.
Fig. 2 is a functional structure diagram of the vehicle starting anti-rolling early warning method, and fig. 3 is a flow chart of the vehicle starting anti-rolling early warning method. As can be seen from fig. 2 and 3, the vehicle starting anti-rolling early warning method provided by the invention comprises the following steps:
step 1, when the door opening detection device 10 detects that the left front side door is opened from the outside of the vehicle, a signal is sent to the main control unit 60, and the main control unit 60 starts the vehicle chassis detection device 20.
Step 2, the vehicle chassis detection device 20 detects the living body information of the area under the vehicle chassis and returns the detection result to the main control unit 60, and the main control unit 60 performs the following two processes according to the detection result:
if the existence of the life information under the vehicle chassis is detected, the main control unit 60 sends an instruction to control the safety reminding device 40 to make I-level alarm reminding, and the step 3 is entered;
if the existence of the life information under the vehicle chassis is not detected, the safety reminding device 40 does not act, and the step 3 is entered.
Step 3, the main control unit 60 obtains vehicle operation basic information in real time from the CAN communication module 50, where the vehicle operation basic information includes engine ignition conditions and gear information.
Step 4, if the main control unit 60 receives an engine ignition signal from the CAN communication module 50, the vehicle chassis detection device 20 is turned off, and the chassis early warning process is completed; simultaneously starting the vehicle front-rear direction detection device 30, and entering step 5; if the main control unit 60 does not receive the engine ignition signal from the CAN communication module 50, the process returns to step 2.
Step 5, the main control unit 60 performs the following two processes according to the difference of the gear information:
when the vehicle is in a reverse gear position, the main control unit 60 only starts the rear detection device 320, detects the information of the life body behind the vehicle, and sends the detection result to the main control unit 60;
when the vehicle is in the forward gear, the main control unit 60 only turns on the forward detection device 310, detects the living body information in front of the vehicle, and sends the detection result to the main control unit 60.
Step 6, the main control unit 60 determines the danger level of the front living body or the distance l between the rear living body and the vehicle, and controls the safety warning device 40 to perform alarm warning of different levels according to the danger level determination result, specifically, the method includes the following 2 steps:
step 6.1, the main control unit 60 determines the danger level according to the distance l between the living body and the vehicle, and sets the danger distance to be l 1 A safety distance of l 2 ：
When l is less than or equal to l 1 Setting the danger level as level I;
when l is 1 <l≤l 2 Setting the danger level as level II;
when l is>l 2 Or the vehicle front-rear direction detection device 30 does not detect the living body information and sets the risk level to level iii.
In the present embodiment, the danger distance l 1 Has a value range of 1-2m and a safety distance l 2 The value range of (a) is 3-4 m.
Step 6.2, according to the danger level of the area where the living body is located, the main control unit 60 performs the following processing:
when the danger level is level i, the main control unit 60 controls the safety warning device 40 to perform level i warning;
when the security level is level II, the main control unit 60 controls the security reminding device 40 to alarm level II;
when the security level is level iii, main control unit 60 controls security alert device 40 to perform level iii alarm.
And 7: and the early warning process of the front and rear sides of the vehicle is finished, the front and rear direction detection device 30 of the vehicle is closed, and the system is quitted to wait for the next starting.
For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit and the meaning of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (2)
1. A vehicle starting anti-rolling early warning method relates to a vehicle starting anti-rolling early warning system, and the early warning system comprises a vehicle door opening detection device (10), a vehicle chassis detection device (20), a vehicle front and rear direction detection device (30), a safety reminding device (40), a CAN communication module (50) and a main control unit (60); the vehicle door opening detection device (10) is connected with the main control unit (60) in a one-way mode, the vehicle chassis detection device (20) is connected with the main control unit (60) in a two-way mode, the vehicle front and rear direction detection device (30) is connected with the main control unit (60) in a two-way mode, the safety reminding device (40) is connected with the main control unit (60) in a one-way mode, and the CAN communication module (50) is connected with the main control unit (60) in a two-way mode;
the vehicle door opening detection device (10) is arranged on a left front vehicle door and used for detecting the opening of the left front vehicle door and sending a signal to the main control unit (60) for judging whether a driver gets on the vehicle or not;
the vehicle chassis detection device (20) is arranged on a vehicle chassis and used for detecting the life body information in the area under the chassis and sending the detected life body information to the main control unit (60); if the life information is detected, the main control unit (60) controls the safety reminding device (40) to give out warning reminding; if the life information is not detected, the safety reminding device (40) does not act;
the vehicle front-rear direction detection means (30) is activated after ignition of the vehicle; the vehicle front-rear direction detection device (30) comprises a front detection device (310) and a rear detection device (320); the front detection device (310) and the rear detection device (320) are respectively arranged in the front and rear of the vehicle and used for detecting the living body information in the front and rear of the vehicle and sending the detected living body information to the main control unit (60); the main control unit (60) divides the danger level of the area where the life body is located according to the detected life body information, and controls the safety reminding device (40) to give out warning reminding of different levels according to the danger level;
the CAN communication module (50) is mounted on a vehicle CAN network and used for reading basic information of vehicle operation and sending the information to the main control unit (60); the basic information of the vehicle running comprises the engine ignition condition and the vehicle gear condition of the vehicle;
the vehicle door opening detection device (10) comprises a fastener, a locking device and a locking device, wherein the fastener is arranged on the left front door of the vehicle;
the vehicle chassis detection device (20) comprises two life body detection sensors which are respectively arranged at two ends of a vehicle chassis and cover the whole chassis area;
the front detection device (310) comprises two life body detection sensors which are arranged at two ends of a front bumper of the vehicle; the rear detection device (320) comprises two life body detection sensors which are arranged at two ends of a rear bumper of the vehicle; the range of the vehicle front and rear direction detection device (30) covers a vehicle front and rear fan-shaped area;
the safety reminding device (40) is internally provided with a driving circuit for driving and triggering a loudspeaker to give an alarm, wherein the alarm levels comprise I-level alarm, II-level alarm and III-level alarm;
the early warning method is characterized by comprising the following steps:
step 1, when a vehicle door opening detection device (10) detects that a left front vehicle door is opened from the outside of a vehicle, a signal is sent to a main control unit (60), and the main control unit (60) starts a vehicle chassis detection device (20);
step 2, the vehicle chassis detection device (20) detects the life body information of the area under the vehicle chassis and returns the detection result to the main control unit (60), and the main control unit (60) performs the following two processes according to the detection result:
if the life information exists under the vehicle chassis, the main control unit (60) sends an instruction to control the safety reminding device (40) to make I-level alarm reminding, and the step 3 is carried out;
if the existence of the life information under the vehicle chassis is not detected, the safety reminding device (40) does not act, and the step 3 is carried out;
step 3, the main control unit (60) acquires basic information of vehicle operation in real time from the CAN communication module (50), wherein the basic information of vehicle operation comprises the ignition condition of an engine and gear information;
step 4, if the main control unit (60) receives an engine ignition signal from the CAN communication module (50), the vehicle chassis detection device (20) is closed, and the chassis early warning process is finished; simultaneously starting a vehicle front and rear direction detection device (30), and entering step 5; if the main control unit (60) does not receive the engine ignition signal from the CAN communication module (50), returning to the step 2;
step 5, the main control unit (60) performs the following two processes according to different gear information:
when the vehicle is in a reverse gear position, the main control unit (60) only starts a rear detection device (320), detects the rear life information of the vehicle and sends a detection result to the main control unit (60);
when the vehicle is in a forward gear, the main control unit (60) only starts a front detection device (310), detects the information of the life body in front of the vehicle and sends the detection result to the main control unit (60);
step 6, the main control unit (60) judges the danger level of the front living body or the distance l between the rear living body and the vehicle, and controls the safety reminding device (40) to carry out alarm reminding at different levels according to the danger level judgment result, specifically, the method comprises the following 2 steps:
step 6.1, the main control unit (60) judges the danger level of the living body according to the distance l between the living body and the vehicle, and the danger distance is set to be l 1 A safety distance of l 2 ：
When l is less than or equal to l 1 Setting the danger level as I level;
when l is 1 ＜l≤l 2 Setting the danger level as II level;
when l is more than l 2 Or the vehicle front-rear direction detecting device (30) does not detectSetting the danger level to be level III when the life information is reached;
step 6.2, according to the danger level of the area where the living body is located, the main control unit (60) performs the following processing:
when the danger level is I level, the main control unit (60) controls the safety reminding device (40) to alarm I level;
when the safety level is II level, the main control unit (60) controls the safety reminding device (40) to alarm II level;
when the safety level is level III, the main control unit (60) controls the safety reminding device (40) to alarm level III;
and 7: and (3) finishing the early warning process before and after the vehicle starts, closing the vehicle front and rear direction detection device (30), and quitting the system to wait for the next start.
2. The vehicle starting rolling-prevention early warning method as claimed in claim 1, wherein the dangerous distance l 1 Is 2m, a safety distance l 2 Is 4 m.
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| CN1836939A (en) * | 2005-03-22 | 2006-09-27 | 高田株式会社 | Object detection system, protection system, and vehicle |
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